Is Essential for Optimal Growth of Branched-Chain Amino Acid Biosynthesis
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Effects of branched-chain amino acid deficiency in diets on growth factors, pancreatic enzymes activity and whole body proximate of Sobaity seabream juvenile (Sparidentex hasta)
On the current study the effects of reducing branched-chain amino acids (BCAA) in diets of Sobaity sea bream in a constant level (40%) on growth and nutritional indices, pancreatic enzymes activity, whole body chemical proximate and amino acids, was assessed. This experiment was conducted in Marine Fish Research Station of Imam Khomeini harbor during July and August of 2014. For these purposes,...
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Bacillus subtilis ccpA mutant strains exhibit two distinct phenotypes: they are defective in catabolite repression, and their growth on minimal media is strongly impaired. This growth defect is largely due to a lack of expression of the gltAB operon. However, growth is impaired even in the presence of glutamate. Here, we demonstrate that the ccpA mutant strain needs methionine and the branched-...
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The branched chain amino acids-valine, leucine, and isoleucine-are among the 10 essential amino acids that are not synthesized in mammals. Therefore, biosynthesis of branched chain amino acids in plants is of interest due to their importance in human and animal diets. In addition, in the early 198Os, two new classes of herbicides (imidazolinones and sulfonylureas) were introduced that inhibit t...
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BCAAs (branched-chain amino acids) are indispensable (essential) amino acids that are required for body protein synthesis. Indispensable amino acids cannot be synthesized by the body and must be acquired from the diet. The BCAA leucine provides hormone-like signals to tissues such as skeletal muscle, indicating overall nutrient sufficiency. BCAA metabolism provides an important transport system...
متن کاملComparison of DeltarelA strains of Escherichia coli and Salmonella enterica serovar Typhimurium suggests a role for ppGpp in attenuation regulation of branched-chain amino acid biosynthesis.
The growth recovery of Escherichia coli K-12 and Salmonella enterica serovar Typhimurium DeltarelA mutants were compared after nutritional downshifts requiring derepression of the branched-chain amino acid pathways. Because wild-type E. coli K-12 and S. enterica serovar Typhimurium LT2 strains are defective in the expression of the genes encoding the branch point acetohydroxy acid synthetase II...
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تاریخ انتشار 2000